tofsee | 9965d42357361bba917eeeaaefc632514b424626b965ea69d8c2523c70de681b

Analysis

max time kernel
144s
max time network
128s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
18-01-2025 20:30

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General

Target

2025-01-18_991f4a42ff851f8b3363db9251d39ea2_mafia.exe
Size

11.8MB
MD5

991f4a42ff851f8b3363db9251d39ea2
SHA1

cfc4f31a7e136b93081c4ce0c7eb013e3b56a8b7
SHA256

9965d42357361bba917eeeaaefc632514b424626b965ea69d8c2523c70de681b
SHA512

87d7c5cc0a3897674950a0c0ded324cf8b61cff5ecb1419e295f8081c7e660e8a82832ae0e30ceaf1a9b11630e1b706697291c1c9f63d3b1200147934b118585
SSDEEP

49152:lqE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP:lqtYc3

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

43.231.4.7

lazystax.ru

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Tofsee family
tofsee

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\xmbxafjv = "0"	svchost.exe

Creates new service(s) 2 TTPs
persistence execution

Windows Service
T1543.003

Service Execution
T1569.002

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2248	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\xmbxafjv\ImagePath = "C:\\Windows\\SysWOW64\\xmbxafjv\\fioixitz.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2628	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2196	fioixitz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2196 set thread context of 2628	2196	fioixitz.exe	41

Launches sc.exe 3 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
2408	sc.exe
1208	sc.exe
2200	sc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-18_991f4a42ff851f8b3363db9251d39ea2_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fioixitz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1640 wrote to memory of 2124	1640	2025-01-18_991f4a42ff851f8b3363db9251d39ea2_mafia.exe	28
PID 1640 wrote to memory of 2124	1640	2025-01-18_991f4a42ff851f8b3363db9251d39ea2_mafia.exe	28
PID 1640 wrote to memory of 2124	1640	2025-01-18_991f4a42ff851f8b3363db9251d39ea2_mafia.exe	28
PID 1640 wrote to memory of 2124	1640	2025-01-18_991f4a42ff851f8b3363db9251d39ea2_mafia.exe	28
PID 1640 wrote to memory of 1648	1640	2025-01-18_991f4a42ff851f8b3363db9251d39ea2_mafia.exe	30
PID 1640 wrote to memory of 1648	1640	2025-01-18_991f4a42ff851f8b3363db9251d39ea2_mafia.exe	30
PID 1640 wrote to memory of 1648	1640	2025-01-18_991f4a42ff851f8b3363db9251d39ea2_mafia.exe	30
PID 1640 wrote to memory of 1648	1640	2025-01-18_991f4a42ff851f8b3363db9251d39ea2_mafia.exe	30
PID 1640 wrote to memory of 2408	1640	2025-01-18_991f4a42ff851f8b3363db9251d39ea2_mafia.exe	32
PID 1640 wrote to memory of 2408	1640	2025-01-18_991f4a42ff851f8b3363db9251d39ea2_mafia.exe	32
PID 1640 wrote to memory of 2408	1640	2025-01-18_991f4a42ff851f8b3363db9251d39ea2_mafia.exe	32
PID 1640 wrote to memory of 2408	1640	2025-01-18_991f4a42ff851f8b3363db9251d39ea2_mafia.exe	32
PID 1640 wrote to memory of 1208	1640	2025-01-18_991f4a42ff851f8b3363db9251d39ea2_mafia.exe	34
PID 1640 wrote to memory of 1208	1640	2025-01-18_991f4a42ff851f8b3363db9251d39ea2_mafia.exe	34
PID 1640 wrote to memory of 1208	1640	2025-01-18_991f4a42ff851f8b3363db9251d39ea2_mafia.exe	34
PID 1640 wrote to memory of 1208	1640	2025-01-18_991f4a42ff851f8b3363db9251d39ea2_mafia.exe	34
PID 1640 wrote to memory of 2200	1640	2025-01-18_991f4a42ff851f8b3363db9251d39ea2_mafia.exe	36
PID 1640 wrote to memory of 2200	1640	2025-01-18_991f4a42ff851f8b3363db9251d39ea2_mafia.exe	36
PID 1640 wrote to memory of 2200	1640	2025-01-18_991f4a42ff851f8b3363db9251d39ea2_mafia.exe	36
PID 1640 wrote to memory of 2200	1640	2025-01-18_991f4a42ff851f8b3363db9251d39ea2_mafia.exe	36
PID 1640 wrote to memory of 2248	1640	2025-01-18_991f4a42ff851f8b3363db9251d39ea2_mafia.exe	39
PID 1640 wrote to memory of 2248	1640	2025-01-18_991f4a42ff851f8b3363db9251d39ea2_mafia.exe	39
PID 1640 wrote to memory of 2248	1640	2025-01-18_991f4a42ff851f8b3363db9251d39ea2_mafia.exe	39
PID 1640 wrote to memory of 2248	1640	2025-01-18_991f4a42ff851f8b3363db9251d39ea2_mafia.exe	39
PID 2196 wrote to memory of 2628	2196	fioixitz.exe	41
PID 2196 wrote to memory of 2628	2196	fioixitz.exe	41
PID 2196 wrote to memory of 2628	2196	fioixitz.exe	41
PID 2196 wrote to memory of 2628	2196	fioixitz.exe	41
PID 2196 wrote to memory of 2628	2196	fioixitz.exe	41
PID 2196 wrote to memory of 2628	2196	fioixitz.exe	41

C:\Users\Admin\AppData\Local\Temp\2025-01-18_991f4a42ff851f8b3363db9251d39ea2_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-18_991f4a42ff851f8b3363db9251d39ea2_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1640
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xmbxafjv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2124
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\fioixitz.exe" C:\Windows\SysWOW64\xmbxafjv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1648
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xmbxafjv binPath= "C:\Windows\SysWOW64\xmbxafjv\fioixitz.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-18_991f4a42ff851f8b3363db9251d39ea2_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2408
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xmbxafjv "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1208
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xmbxafjv
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2200
- C:\Windows\SysWOW64\netsh.exe
  "C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
  2⤵
  - Modifies Windows Firewall
  - Event Triggered Execution: Netsh Helper DLL
  - System Location Discovery: System Language Discovery
  PID:2248

C:\Windows\SysWOW64\xmbxafjv\fioixitz.exe
C:\Windows\SysWOW64\xmbxafjv\fioixitz.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-18_991f4a42ff851f8b3363db9251d39ea2_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2196
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2628

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\fioixitz.exe

Filesize
12.5MB

MD5
0ab065b52a2ce7204d65f55e74c6ca27

SHA1
8118f51df0531cdf305cdc47ed45fefeb43c8d3a

SHA256
55e2d093b6f5eff62d79339f892e2d5e1fbd203fd5134f6aab650d2921987a02

SHA512
376e983c4dac92af10bd4c3811ff310cec7350481cc6d2501b8bc7dbb9c006478c1cb6a73d21631cc22ea1efda937c5443a902fbc7bfc9e6fed4fceec117554a

Download Submit
memory/1640-7-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/1640-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1640-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1640-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1640-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1640-1-0x0000000002F70000-0x0000000003070000-memory.dmp

Filesize
1024KB

Download
memory/2196-17-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/2628-16-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2628-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2628-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2628-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2628-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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